Furnace grate-bar



2 Sheets-Sheet 1.

(No Model.)

- J. C. KNOEPPEL.

FURNACE GRATE BAR.

Patentd Aug. 23, 1881.

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( No Model.) 2 Sheets-Sheet 2.

J. U. KNOEPPEL.

FURNACE GRATE BAR. 7

No. 246,015. Patent-ed Aug. 23,1881.

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the State of \Visconsin, have invented certain UNITED STATES PATENTOFFICE.

JOHN C. KNOEPPEL, OF MILWAUKEE, WISCONSIN.

FURNACE GRATE-BAR.

SPECIFICATION forming part of Letters Patent No. 246,015, dated August23, 1881.

Application filed June 14, 1881. (No model.)

To all whom it may concern Be it known that I, J OHN (J. KNOEPPEL, ofMilwaukee, in the county of Milwaukee, and in new and usefulImprovements in Agitating and DumpingDevicesforFurnaceGrate-Bars; and Ido hereby declare that the following is a full, clear, and exactdescription thereof.

My invention relates to furnaces; and it consists in devices forsecuring two or more gratebars together and shaking and dumping them inseries, as will be more fully described hereinafter.

In the drawings, Figure 1 is a perspective view of a furnace-bedembodying my invention. Fig. 2 is an end view of a portion of the same.Fig. 3 is a top View. Fig. 4 is a side view of an improved grate-barwhich forms the subject of a separate application bearin geven dateherewith. Fig.5 is an outer end view of one of the end seats for thegrate-bars. Fig. 6 is an inner end view of the same, and Fig. 7 is a topview. Fig.8 is an end view of a center rest for long grate-bars, whichlatter are shown in cross-section. Fig. 9 is a rocking bed, which 1 usein connection with short grate-bars. Fig. 10 is a cross-section of therocking bed, and an end view of a seat for the ends of the short barspartly adjusted upon it. Fig.11 is an end view of the same. Fig. 12 is adetail section of the front bearing-bar, and an angle-bracket whichassists it in supporting the operating mechanism. Fig. 13 is a frontView of the bearing-bar, with the angle-bracket removed. Fig. let is atop view of an gle-bracket and bearing-bar.

A A are what I term the bearing-bars, and these are placed upon or inthe furnace-walls.

B B are seats in which the-ends of the gratebars rest and are secured,and b are caps havin g dovetailed grooves by which they are secured upondovetailed projections on certain of the partitions b of the seats B, tohold the bars in place.

Each of the seats B is provided with a trunnion, D, having a squaredopening, 01, through its length, to receive a supporting and operatingshaft, D, and a flange, b serves to strengthen each seat B, and on theside of flange, opposite the trunnion, I provide the seats with a shaftbox, d.

The trunnions D are designed to rest in bearing-boxes a, on thebearing-bar, and to be covered by caps A A, which also serve to protectthe operating mechanism from falling ashes, 85c. Gear-wheelsE are keyedto shaft D, just in front of the trunnions D, and these gearwheels meshwith theupper teeth of a rack-bar, F, the lower teeth of which mesh witha second gear-wheel, F, having a handle, f, by which it is operated.

The rack-bar F is supported by lugs a, a on the angle-piece andbearing-bars, so that its lower teeth will hang down between them, andto relieve the friction of the bar upon the lugs a a, I journal rollersa a between the bearingbar and angle-bar,just high enough to take someof the weight of the bar.

The gear-wheel F is journaled in hangersf on the lower edge of theangle-bar and front bearing-bar.

If I so desire, I may dispense with therack-bar and connect thegear-wheels E by another gearwheel journaled between, without departingfrom the spirit of my invention.

1 usually place six bars side by side, securing their ends in the seatsB,thepartitions of which serve to hold them the desired distance apart.I also provide center rests, B, when the gratebars are long, which, likethe end rests, have partitions, and have strengthening-flan ges andshaft-boxes 12 passing through them, as shown in Fig. 8.

1n Fig. l I have shown the grate-bars extending from one side to theother of the firebed; but it may be found desirable at times to use adouble row of bars. To meet such an emergency I have provided a rockingbed, I, Fig. 9, to which I attach trunnions by adovetail, K. Thisrocking bed is cast with verticalopenings 7c k it, through which lugs LL L on seat or rests B, which are modifications ot' the seats B, arepassed. The center lug, L, on the end seat or rest, B,has a squaredopening through it, which, when the seat or rest B is in place,coincides with a shaft-box, L, in the rocking bed, so that the shaft Dat that end will lock the seat or rest to the rocking bar. Bolts passedthrough the partitions 7c k k and the depending lugs L L L also afi'ordadditional security. One center piece may serve as a seat for the endsof bothsections of the grate-bars J, or each section may have a pair ofseats or rests.

Instead of the rocking bar, I may retain the 2 enacts long supportingand operating shaft, and passing a center rest, 13, to its middle,secure it there, and then lay the short bars in place, those in onesection resting with their inner ends against the inner ends of those inthe next section; or I may run the long shaft D through the trunnionsand shaft-boxes of the rocker-bar.

I preferably make the outer bars of each series with wider flanges thanthose on the inner bars, and these flanges have their outer edgesserrated, the serrations ot' the outer flange of the grate-bar of oneseries meshing with those of the outer bar of the next series, so thatwhen the grate-bars are in their normal or vertical position thefire-bed will be uninterrupted, and yet neither series will interferewith the move ments of the other.

It is obvious that my seats or rests are equally Well adapted forstationary fire-beds with either long or short bars as they are fordumping and agitating grates, and when such fire-beds are employed I maydispense with. gears and rocking devices and employ stationary bearin gsor rests.

What Iclaim as my intention, and desire to secure by Letters Patent, is

1. In afurnace-bed, the bearing-bars havirig trunnion-boxes, incombination with one or more supporting and operating bars, and seatsprovided with partitions for the grate-bars, as set forth.

2. In a furnace-bed, the combination of hearing-bars, end seats providedwith partitions,

and grate-bars with the supporting and operating bars and gear-wheels,substantially as set forth.

3. In a furnace-bed, the combination of bearing-bars, end seats providedwith partitions, and grate-bars with the supporting and operating bars,gear-wheels, and rack-bar, as set forth.

4. In a furnace-bed, the end seats for the grate-bars, having trunnionsand shaft-box, and divided by partitions into spaces for the ends of thegrate-bars to fit in, as set forth.

5. The end seats having partitions for se: curing the bars the properdistance apart, some of which partitions have dovetail projections toreceive caps having corresponding grooves, as set forth.

6. The center seats or rests having vertical partitions, and having asquared opening to receive the operating-shaft, as set forth.

7. The combination of the front bearing-bar, having shoulder a, and angle-piece, havin g like shoulder a, with the rack-bar, as set forth.

8. The combination of shaft D, end rests, B, having trunnions D,gear-wheels E, rack-bar supported between the bearing-bar A andangle-piece g by shoulders at a, and rollers a a and the gear-wheel F,as set forth.

In testimony that I claim the foregoing I have hereunto set my hand this2d dayof June, 1881.

JOHN G. KNOEPPEL.

Witnesses:

S. S. STOUT, HAROLD G. UNnERWoon.

